Objectives of a dyeing lab | Pantone book | Lab Dip development procedure LAB section Lab section in dyeing is the first major segment of a dyehouse despite of its size compared to the production floor. Lab is where the “lab dips” are prepared and the final recipes for bulk dyeing is constructed. A lab […]
Dyeing
Natural Color Substances for Textile Materials
Natural Color Substances for Textile Materials EXPLORATION TEHNIQUE NATURAL DYES SUBSTANCE OF PLANTS IN AROUND US FOR DYEING TEXTILE MATERIALS According to the source of the textile dye is classified into 2, namely: First, Natural Coloring Agent (NCA) is a dye derived from natural materials in generally from the extracts of plants or animals. Second, […]
Reactive Dyes – A Better Alternative To Traditional Dyes?
Reactive Dyes – A Better Alternative To Traditional Dyes? How Is The Dyeing Operation Performed? Dyeing operations are performed by binding dyes to fibres. There are primarily two types of dyes, namely: Water-soluble dyes Water-insoluble dyes When it comes to dyeing fibres, some fibres adhere to and accept dyes easily, while others do not. Depending […]
Dyeing Auxiliaries | Function of Auxiliaries | Dyeing Method of Vat Dye | part 02
Vat dye | Why called vat dye | Vat dye properties | Uses of Vat dye | Classification of Vat dye | The 1N (indanthrene normal) group | The IW (indanthrene Warm) group | The IK group | Anthraquinonoid | Indigoid | Dyeing of cotton with vat dye | Vat dyeing recipe | Part 01 […]
Dyeing of Cotton with Vat dye | Part 01
Vat dye Vat dye is one of the oldest types of dye. It is mainly suitable for cellulosic fibre for best overall fastness properties. Because of the popularity of blue jeans, indigo is still one of the most important dye in the world in the present time. Natural indigo was extracted by fermenting Indigofera tinctoria […]
Defects of Sulfur Dyeing Part 3
Part 01 :Introduction to Sulfur Dyes | History of Sulfur Dyes | Method of manufacture of Sulfur dye | Trade Names of Sulfur Dyes | Characteristics of Sulfur Dyes | Features of Sulfur Dye | Chemical Structure of Sulfur Dye | Chemical Nature of Sulfur Dyes | Chemistry of dyeing with Sulfur Dye Part […]
Classification of Sulpher Dyes Part 2
Part 01 :Introduction to Sulfur Dyes | History of Sulfur Dyes | Method of manufacture of Sulfur dye | Trade Names of Sulfur Dyes | Characteristics of Sulfur Dyes | Features of Sulfur Dye | Chemical Structure of Sulfur Dye | Chemical Nature of Sulfur Dyes | Chemistry of dyeing with Sulfur Dye Part […]
Introduction to Sulfur Dyes Part 1
Introduction to Sulfur Dyes Sulfur dyes are complex heterocyclic molecules or mixtures formed by melting or boiling organic compounds containing amino or nitro groups with Na-polysulphide and Sulfur. Sulfur dyes are so called as they all contain Sulfur linkage within their molecules. Sulfur dyes are highly coloured, water insoluble compounds and have to be […]
Dyeing Jute yarn with Basic dye
Name of the Experiment: – Dyeing Jute yarn with Basic dye. Introduction: It is suitable for acrylic fibers (other fibers by mordanting). It reacts with acetic groups, or mordants a chemical which can react or complex with a chromophore to form an insoluble color in the fibre. It has good fastness properties on acrylic […]
Auxilaries Of Disperse Dye
Part 1 : Disperse Dye for Polyester | Why called disperse dye | Application and mechanism Part 2 : Method of polyester dyeing | Polyester Dyeing process Auxilaries Of Disperse Dye . Carrier : The extreme crystalline nature of polyester fibre creates problem in obtaining dark shade by conventional dyeing method even at high temperature. The carrier […]